last night my 03 6.0 was loosing power, couldn't sustain hwy speeds, and died about 1 mile from the house. this morning I tried to crank it and it was trying to start. Could it be as simple as water in fuel?

hey, i'm new to fords and diesels, and have a similar problem.
truck starts,idles fine, but won't build speed after 30mph,and wont build rpm
after 2nd gear.
a ford dealer mechanic buddy thought the fuel might have geld, told me to
replace both fuel filters.
gonna try that tomorrow.
any other thoughts?

Got my 03 6.0 started today after sitting over night. cranked over for a long time and was sputtering so I hammered the throttle and it came back to life!
However at idle it was 1200 rpm, and when I reved it I was rollin coal. I killed it and tried to restart, no luck. tomorrow filters and drain off the water. Hope it works!

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